The test I just did shows that when it's checked, it has to be on a switch. I tried both checking all three boxes and checking none. In the 10 mph winds we are having this evening it was obvious that with the boxes checked and not on a switch from my receiver, it was much less stable than having none checked.
I also found if you don't have anything checked on height hold, you simply hold the throttle and it will stick. If you have it checked without it being on a switch, it does nothing. I put my height hold on Ch7, with just the H checked. When I flipped the switch on, it held position once I let go of the throttle. It stayed there until I turned the switch off, at that point it either climbed of started descending.

Maybe if nothing is ticked it reverts to the safest option. ie Auto stability and height hold are then on permanently. This frees up a number of channels, so maybe its a good thing

The last days I tried to make a list for the gui mode parameters.
I messured the PWM values from the rabbit at ecs input for the rear left
engine in flight mode. The engine values shown in the gui looks like to be
not the same at all that i directly messured at the output.
The list is attached.

In the english manual was descripted on side 10 § 13 " the parameter
adjustment: in dormat (lock) state". This adjustment doesn't work at this time i think.
Changing parameters in dormant state will NOT changing anything in flight or
will synchronized with the gui parameters or vice versa.
Its total equal how the setting is. It fits neighter in autostab or normal / 3d mode.
Only the gui parameters are working.

I make the changes to the settings and check by disconnecting the USB cable and then connecting again and all the settings are okay. I then go and plug a battery in and all the settings revert to the settings that came with the FW.

Because I use the Ultra PWM Esc it reverts back to the 330 hz which puts the motors in flat out mode which promptly result in my hands getting completely chopped up and nearly my face.

It seems that if you leave the FC disconnected for a while it reverts back to its original settings. I attach 2 pics showing the settings as set by me and then what it looked like after 5 minutes and see how the settings have changed back to what they were before.

Anyone have any ideas. This was not a problem with the FW dated 10 /1 2012

I make the changes to the settings and check by disconnecting the USB cable and then connecting again and all the settings are okay. I then go and plug a battery in and all the settings revert to the settings that came with the FW.

Because I use the Ultra PWM Esc it reverts back to the 330 hz which puts the motors in flat out mode which promptly result in my hands getting completely chopped up and nearly my face.

It seems that if you leave the FC disconnected for a while it reverts back to its original settings. I attach 2 pics showing the settings as set by me and then what it looked like after 5 minutes and see how the settings have changed back to what they were before.

Anyone have any ideas. This was not a problem with the FW dated 10 /1 2012

Rob

Hi Rob,
sorry to know that you've get hurted by the motors. never come across that before. Just like you, I always double check after making some changes by closing the GUI and unplug the usb cable then reconnect and start the GUI again. Every one out of about 5 times I found what I've change is not registered in the fc and then will have to do it again. However, once double checked, it remain there without losing ... I will ask Rabbit to see what they say about it..

Maybe if nothing is ticked it reverts to the safest option. ie Auto stability and height hold are then on permanently. This frees up a number of channels, so maybe its a good thing

That has been my findings. You might look at it as some sort of "failsafe" option.
I'm using a DX7, which has a limited number of switches to operate my camera and I want stability on all the time anyway.
I have my shutter on ch5 (gear), tilt on ch6 (Aux 1, 3 position) and height hold on ch7 (aux 2)
I've been flying with auto stable unchecked from the beginning. Last night I checked all three boxes and it was very unruly. That tells me that without a switch governing that channel that you lose it.